PIN (Postal Index Number) was introduced in INDIA on August 15, 1972. This is the coding system used by postal services of India for different areas. Totally in our country there are 9 divisions, of which 8 are geographical & 9th is reserved to army.

Public Interest Litigation is directly filed by an individual or group of people in the Supreme Court of India and High Courts and judicial member. This petition is accepted by the court only if there is interest of large public involved. Generally this petition is filed by a public spirited person or organisation, if it was felt that certain interests are undermined by the government.